Multi-branch convenient connection cable

Abstract

The utility model relates to the technical field of wire and cable manufacturing, and discloses a multi-branch convenient connection cable, which comprises a main conductor, branch conductors, a protective layer and a connection pipe fixedly connected to the protective layer, the connection pipe is in threaded connection with an internal thread of a sleeve through a first external thread, an annular sealing gasket is arranged in the sleeve, and the annular sealing gasket is connected with the main conductor through a second external thread. The end, away from the connecting pipe, of the sleeve is connected with the end cover in a screwed-in fit mode through a second external thread. The end portion of the end cover abuts against the side face of the annular sealing gasket, independent sealing of the branch conductor penetrating through the sleeve is achieved, and the cable further comprises a graded maintenance guide assembly which is composed of a positioning insertion piece inserted into a positioning groove of the end cover. According to the utility model, through a modularized threaded connection structure, independent dismounting and sealing of the branch joint are realized, the problems in the prior art that overall dismounting is needed for maintenance and fault branches are difficult to position are solved, the maintenance efficiency is greatly improved, and the sealing reliability of an IP65 level is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable manufacturing technology, and in particular to a multi-branch convenient connection cable. Background Technology

[0002] Multi-branch cables are widely used in outdoor power supply, lighting projects, and industrial equipment connections due to their advantages such as flexible wiring and convenient installation. In practical applications, due to long-term exposure to complex outdoor environments or cable failures, the branch joints of the cable require regular maintenance or repair.

[0003] Traditionally, a single protective sleeve or potting compound is used to centrally protect the branch joint area. While this integrated protective structure provides some initial waterproof and dustproof protection, once a branch fails or the internal wiring of the branch joint needs repair, the entire protective sleeve or potting compound often needs to be completely and destructively removed. This is not only time-consuming and labor-intensive, but the removal and reinstallation process can also affect other healthy branches, resulting in high maintenance costs and making it difficult to achieve quick and accurate single-point maintenance. Furthermore, in cable networks with numerous branches, even if the approximate location of the fault is determined, maintenance personnel often struggle to quickly and accurately locate the specific faulty branch, lacking effective location identification methods.

[0004] Therefore, this utility model proposes a multi-branch convenient connection cable, which aims to solve the shortcomings of the existing technology where the branch joint protective sleeve needs to be completely disassembled for maintenance and the faulty branch is difficult to locate. Utility Model Content

[0005] In view of the problems in the existing technology of multi-branch connection cables, such as the need to completely disassemble the protective sleeve of the branch joint for maintenance, resulting in low maintenance efficiency, and the difficulty in quickly locating the faulty branch, this utility model aims to provide a multi-branch convenient connection cable with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a multi-branch convenient connection cable, including: a main conductor, branch conductors, a protective layer and a connecting tube; and a detachable component.

[0007] The protective layer covers the outer periphery of the main conductor, and the connecting pipe is fixedly connected to the outer wall of the protective layer, serving as a platform for branch conductors to be led out and for the installation of detachable components. The end of the connecting pipe away from the protective layer is provided with a first external thread.

[0008] The detachable assembly includes a sleeve, an annular sealing gasket, and an end cap. The sleeve has an internal thread on its inner wall at the end closest to the connecting pipe. The sleeve is threaded to a first external thread on the connecting pipe via the internal thread, forming a detachable first protective connection. The end cap has a second external thread on its outer wall, and the sleeve has an internal thread at its inner wall at the end furthest from the connecting pipe that mates with the second external thread. The end cap is screwed into the sleeve via the second external thread, forming a detachable second protective connection.

[0009] The branch conductor passes sequentially through the connecting pipe, sleeve, annular sealing gasket, and end cap. The annular sealing gasket is sandwiched between the inner wall of the sleeve and the outer wall of the branch conductor. The end cap presses against the side of the annular sealing gasket. The threaded tightening of the end cap and sleeve generates axial pressure on the annular sealing gasket, causing radial deformation and tightly fitting the branch conductor, thus achieving independent sealing of the branch joint area. This design, through modular threaded connections, effectively enables independent disassembly and assembly and sealing protection of a single branch.

[0010] Preferably, the outer wall of the connecting pipe is provided with a graded maintenance guide assembly, which includes a positioning groove formed on the outer end face of the end cap and a positioning insert that engages with the positioning groove. The graded maintenance guide assembly is used to mechanically and visually identify faulty branches, improving the accuracy of maintenance.

[0011] Preferably, a locking head is fixedly connected to one end of the positioning insert near the end cap, and a locking hole adapted to the shape of the locking head is opened inside the positioning groove. The locking head is inserted into the locking hole. The locking structure is used to ensure that the positioning insert can be firmly locked after insertion to prevent accidental dislodgement.

[0012] Preferably, a handle is fixedly connected to the end of the positioning insert away from the end cover. The handle can preferably be a U-shaped structure or a ring structure, which makes it convenient for maintenance personnel to grip and perform insertion and removal operations.

[0013] Preferably, the outer wall of the connecting pipe is engraved with scale lines along the circumferential direction, and the outer wall of the sleeve is provided with directional scale lines that cooperate with the scale lines. The scale lines and directional scale lines are used for alignment indication during installation to accurately control the depth of thread insertion and the amount of compression of the annular sealing gasket.

[0014] Preferably, the end cap has a through groove at its axial center for the branch conductor to pass through. The inner diameter of the through groove is equal to or slightly larger than the outer diameter of the branch conductor. The through groove is used to precisely guide the branch conductor and provide lateral support for the annular sealing gasket.

[0015] Preferably, the annular sealing gasket is an elastic rubber component, and the inner wall of the sleeve is provided with an abutment step. The annular sealing gasket is located between the abutment step and the end cap, ensuring that when the end cap is tightened, the annular sealing gasket is deformed under pressure and fits tightly against the branch conductor, reliably achieving an IP65 waterproof seal.

[0016] Preferably, the main conductor is provided with a plurality of connecting pipes, each of which is independently equipped with a detachable component, and adjacent detachable components do not interfere with each other, so as to completely realize independent maintenance of multi-branch joints.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting a connecting pipe on the main protective layer, and cooperating with an independent threaded connecting sleeve and end cap, realizes the modular disassembly and assembly of the protection of a single branch joint, solves the problem of the need to completely disassemble the protective sleeve when maintaining the branch joint in the prior art, greatly reduces the maintenance difficulty and improves the maintenance efficiency.

[0019] 2. This utility model applies bidirectional extrusion force to the annular sealing gasket through the end cap and connecting tube, so that the sealing gasket fits tightly against the outer wall of the branch conductor, forming a reliable waterproof sealing structure. This solves the problem of poor sealing performance of multi-branch cable joints in the prior art and enables the protection level to reach the IP65 standard.

[0020] 3. This utility model, by setting up a hierarchical maintenance guide component consisting of positioning inserts, handles and positioning slots, realizes mechanical and visual identification of faulty branches, solves the problem of difficulty in quickly locating faulty branches in the prior art, avoids disassembling and inspecting one by one, and significantly improves the efficiency of inspection and secondary maintenance.

[0021] 4. This utility model achieves precise calibration of the threaded connection depth by setting scale lines on the connecting pipe and cooperating with directional scale lines on the sleeve. This solves the problem in the prior art that the installation quality depends on manual experience and the threads are easily worn due to excessive rotation. At the same time, it ensures the accurate compression of the sealing gasket and extends the service life of the equipment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a multi-branch convenient connection cable proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of a connecting pipe structure for a multi-branch convenient connecting cable proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the detachable component structure of a multi-branch convenient connection cable proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of a positioning insert structure for a multi-branch convenient connection cable proposed in this utility model.

[0026] Legend:

[0027] 1. Main conductor; 2. Branch conductor; 3. Protective layer; 4. Removable component; 401. Sleeve; 402. First external thread; 403. Annular sealing gasket; 404. Internal thread; 405. Second external thread; 406. End cap; 5. Graded maintenance guide component; 501. Positioning insert; 502. Handle; 503. Positioning groove; 504. Scale line; 505. Clamp; 6. Connecting pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example:

[0029] Please refer to Figures 1 to 4 This utility model provides a multi-branch convenient connection cable, which aims to solve the structural defects in the prior art that require the overall disassembly of the protective sleeve for cable joint maintenance and make it difficult to quickly locate faulty branches.

[0030] like Figure 1 and Figure 2 As shown, the multi-branch convenient connection cable includes a main conductor 1 and a protective layer 3 covering the outer periphery of the main conductor 1. The protective layer 3 provides basic insulation and protection for the main conductor 1. A connecting pipe 6 is fixedly connected to the outer wall of the protective layer 3. The connecting pipe 6 serves as an installation platform for branch conductors 2 to be led out and connected to the detachable assembly 4. The end of the connecting pipe 6 away from the protective layer 3 is provided with a first external thread 402. The connecting pipe 6 is connected to the detachable assembly 4 and the graded maintenance guide assembly 5. The detachable assembly 4 provides independent and removable sealing protection for the joint area of ​​the branch conductors 2, and the graded maintenance guide assembly 5 enables visual marking and installation calibration of faulty branches.

[0031] The detachable component 4 includes a sleeve 401, an annular sealing gasket 403, and an end cap 406. The sleeve 401 is used to wrap the connector module of the branch conductor 2. The inner wall of the end of the sleeve 401 near the connecting pipe 6 is provided with an internal thread 404. The sleeve 401 is threadedly connected to the first external thread 402 of the connecting pipe 6 through the internal thread 404. The end cap 406 is used to close the opening of the sleeve 401 and press the annular sealing gasket 403 to achieve a seal. The outer wall of the end cap 406 is provided with a second external thread 405. The inner wall of the end of the sleeve 401 away from the connecting pipe 6 is provided with an internal thread 404 that mates with the second external thread 405. The end cap 406 is screwed into the interior of the sleeve 401 through the second external thread 405. The branch conductor 2 passes sequentially through the connecting pipe 6, the sleeve 401, the annular sealing gasket 403, and the end cap 406. The annular sealing gasket 403 is sandwiched between the inner wall of the sleeve 401 and the outer wall of the branch conductor 2, and the end of the end cap 406 presses against the side of the annular sealing gasket 403. Thus, the annular sealing gasket 403 undergoes radial deformation through compression, tightly fitting the outer wall of the branch conductor 2 and the inner wall of the sleeve 401, achieving a high standard of waterproof sealing. The sealing fit can achieve a protection level of IP65, meeting the requirements for waterproof and dustproof protection.

[0032] A through groove is provided at the center of the end cap 406 for the branch conductor 2 to pass through. The inner diameter of the through groove is equal to or slightly larger than the outer diameter of the branch conductor 2 to ensure the passage of the branch conductor 2. The annular sealing gasket 403 is an elastic rubber component. The inner wall of the sleeve 401 is provided with an abutment step. The annular sealing gasket 403 is located between the abutment step and the end cap 406. When the end cap 406 is tightened, the annular sealing gasket 403 is deformed under pressure and fits tightly against the branch conductor 2 to ensure reliable sealing. Multiple connecting pipes 6 can be installed on the main conductor 1. Each connecting pipe 6 is independently equipped with a detachable component 4, and adjacent detachable components 4 do not interfere with each other, realizing independent maintenance of the branch joint and solving the problem of "maintenance requires complete disassembly".

[0033] To solve the above-mentioned technical problems, the multi-branch convenient connection cable also includes a graded maintenance guide component 5. The graded maintenance guide component 5 and the end cap 406 in the aforementioned detachable component 4 form a specific plug-in and identification relationship, and at the same time form an installation calibration relationship with the connecting pipe 6.

[0034] Please refer to the following carefully. Figure 1 , Figure 2 and Figure 4 The core structure will be described in detail below:

[0035] The graded maintenance guide component 5 includes a positioning insert 501, a handle 502, a locking head 505, and a scale line 504 on the connecting pipe 6. The positioning insert 501 serves as a mechanical and visual marker for faulty branches. The top of the positioning insert 501 is fixedly connected to the handle 502, which is used by maintenance personnel to grip and operate the positioning insert 501 for insertion and removal. The bottom of the positioning insert 501 is equipped with a locking head 505, which is used to engage and fix with the positioning groove 503 on the end cover 406.

[0036] Meanwhile, the end cap 406 in the detachable component 4 is correspondingly provided with a positioning groove 503. The positioning groove 503 is used to accommodate and guide the insertion of the positioning insert 501. The interior of the positioning groove 503 has a locking hole that matches the shape and size of the locking head 505. In the assembled state, the locking head 505 of the positioning insert 501 aligns and locks into the locking hole inside the positioning groove 503. This locking and engaging structure ensures the stability of the fault indicator and allows the positioning insert 501 to be repeatedly inserted and removed without damaging the structure of the end cap 406.

[0037] To aid in precise installation and disassembly, the outer wall of the connecting pipe 6 is engraved with several circumferential graduations 504, and the outer wall of the sleeve 401 is provided with directional graduations that mate with the graduations 504. During installation, by aligning the directional graduations of the sleeve 401 with specific graduations 504 on the connecting pipe 6, the precise depth of thread tightening can be indicated. When the directional graduations align with the graduations 504, it indicates that the annular sealing gasket 403 has been compressed to the correct position (e.g., compression reaches 2mm), ensuring reliable sealing. During disassembly, rotating the sleeve 401 until the directional graduations coincide with the originally aligned graduations 504 indicates that the threads have completely disengaged, preventing excessive rotation that could cause thread wear.

[0038] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0039] In a preferred embodiment, a locking head 505 is fixedly connected to one end of the positioning insert 501 near the end cover 406. The positioning groove 503 of the end cover 406 has a locking hole that matches the shape of the locking head 505. The locking head 505 is inserted into the locking hole. This structure allows the positioning insert 501 to be securely locked after insertion, effectively preventing accidental dislodgement during inspection.

[0040] As another preferred embodiment, a handle 502 is fixedly connected to the end of the positioning insert 501 away from the end cover 406. The handle 502 can preferably be a U-shaped structure or a ring structure. Its function is to facilitate maintenance personnel to pinch and apply force, so as to realize the repeated insertion and removal operation of the positioning insert 501, thereby improving the convenience and operability of fault identification.

[0041] As another preferred embodiment, the outer wall of the connecting pipe 6 is engraved with scale lines 504 along the circumferential direction, and the outer wall of the sleeve 401 is provided with directional scale lines that cooperate with the scale lines 504. Through the alignment of the two, the installer can intuitively judge the thread insertion depth, avoid thread wear and insufficient sealing caused by over-tightening, and effectively ensure the reliability of the connection.

[0042] As another preferred embodiment, a through groove is provided at the axial center of the end cap 406 for the branch conductor 2 to pass through. The inner diameter of the through groove is equal to or slightly larger than the outer diameter of the branch conductor 2. The through groove is used to precisely guide the branch conductor 2 through and provide lateral support for the annular sealing gasket 403, ensuring that the sealing gasket can be evenly compressed and hold the branch conductor 2.

[0043] In another preferred embodiment, the annular sealing gasket 403 is preferably an elastic rubber component with good compression deformation and resilience. The inner wall of the sleeve 401 is provided with an abutment step, and the annular sealing gasket 403 is located between the abutment step and the end cap 406. When the end cap 406 is tightened, the annular sealing gasket 403 is compressed and deformed, tightly adhering to the branch conductor 2, thereby forming a reliable dynamic sealing structure and ensuring an IP65 protection level.

[0044] As another preferred embodiment, the main conductor 1 is provided with multiple connecting pipes 6, and each connecting pipe 6 is independently equipped with a detachable component 4. The adjacent detachable components 4 are spaced apart so as not to interfere with each other. This structure realizes the individual wrapping and maintenance of each branch joint area, thereby solving the problem of overall disassembly of traditional multi-branch cable joint protection.

[0045] The working principle of this multi-branch convenient connection cable is as follows:

[0046] This utility model mainly achieves independent disassembly and sealing of branch joints through a modular threaded connection structure, and achieves rapid positioning and installation assistance for faulty branches through a mechanical marking component.

[0047] When maintenance is required on a branch connector, the maintenance personnel first unscrew the sleeve 401 of the corresponding branch section. The sleeve 401 is threadedly connected to the first external thread 402 of the connecting pipe 6 via the internal thread 404. After the sleeve 401 is detached from the connecting pipe 6, the connector module of the branch conductor 2 is exposed. Subsequently, the end cap 406 is unscrewed. The end cap 406 is threadedly connected to the internal thread 404 inside the sleeve 401 via the second external thread 405. After unscrewing the end cap 406, the branch conductor 2 can be inspected. Because this design enables independent disassembly of a single branch without damaging the structure of the protective layer 3 on the main conductor 1, and without affecting the protection of the detachable components 4 of other branches, it solves the structural defect of traditional integral protective sleeves that require complete disassembly for maintenance.

[0048] After maintenance, align the sleeve 401 with the thread of the connecting pipe 6 and screw it in, then screw in the end cap 406. During the screwing of the end cap 406 into the sleeve 401, the end of the end cap 406 presses against the annular sealing gasket 403 on the inner wall of the sleeve 401. The annular sealing gasket 403, after being axially compressed, undergoes radial deformation, tightly gripping the outer wall of the branch conductor 2 passing through the through groove, forming a sealed enclosure for the branch joint area. This bidirectional compression action of the connecting pipe 6 and the end cap 406 against the annular sealing gasket 403 ensures that the basic protection level reaches IP65, meeting the cable's waterproof and dustproof requirements.

[0049] When a branch malfunctions, the hierarchical maintenance guide component 5 is used to achieve visual fault location. Maintenance personnel pinch the handle 502 at the top of the positioning insert 501, align the latch 505 at the bottom of the positioning insert 501 with the latch hole on the positioning groove 503 of the end cover 406, and insert it. The latch 505 engages inside the latch hole, creating a clear mechanical mark on the positioning insert 501. During subsequent inspections or secondary maintenance, the faulty branch can be quickly located simply by observing the position where the positioning insert 501 is inserted, eliminating the need to disassemble each end cover 406 for inspection, greatly improving maintenance efficiency.

[0050] Meanwhile, during the installation of sleeve 401, the accuracy of thread tightening can be determined by aligning the directional markings on the outer wall of sleeve 401 with the scale line 504 on the connecting pipe 6. When the two markings are aligned, it indicates that the annular sealing gasket 403 has reached the preset compression position, ensuring the reliability of the seal and preventing excessive rotation that could cause thread wear, thus guaranteeing the long service life of the detachable component 4.

[0051] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-branch convenient connection cable, comprising: Main conductor (1), branch conductor (2) and protective layer (3) covering the outer periphery of the main conductor (1); The protective layer (3) is characterized in that a connecting pipe (6) is fixedly connected to the outer wall of the protective layer (3), and a first external thread (402) is provided at one end of the connecting pipe (6) away from the protective layer (3). A detachable component (4) is connected to one end of the connecting pipe (6). The detachable component (4) includes a sleeve (401), an annular sealing gasket (403), and an end cap (406). An internal thread (404) is provided on the inner wall of the sleeve (401) near the connecting pipe (6). The sleeve (401) is threadedly connected to the first external thread (402) through the internal thread (404). A second external thread is provided on the outer wall of the end cap (406). The sleeve (401) has an internal thread that mates with the second external thread (405) at one end away from the connecting pipe (6). The end cap (406) is screwed into the sleeve (401) through the second external thread (405). The branch conductor (2) passes through the connecting pipe (6), the sleeve (401), the annular sealing gasket (403), and the end cap (406) in sequence. The annular sealing gasket (403) is sandwiched between the inner wall of the sleeve (401) and the outer wall of the branch conductor (2), and the end of the end cap (406) presses against the side of the annular sealing gasket (403).

2. The multi-branch convenient connection cable according to claim 1, characterized in that, The outer wall of the connecting pipe (6) is provided with a graded maintenance guide component (5), which includes a positioning groove (503) opened on the outer end face of the end cap (406) and a positioning insert (501) that is inserted into the positioning groove (503).

3. The multi-branch convenient connection cable according to claim 2, characterized in that, The positioning insert (501) is fixedly connected to a clip (505) at one end near the end cap (406). The positioning groove (503) has a clip hole that matches the shape of the clip (505) inside, and the clip (505) is inserted into the clip hole.

4. The multi-branch convenient connection cable according to claim 3, characterized in that, A handle (502) is fixedly connected to one end of the positioning insert (501) away from the end cap (406), and the handle (502) is used to hold and operate the positioning insert (501).

5. The multi-branch convenient connection cable according to claim 1, characterized in that, The outer wall of the connecting tube (6) is engraved with scale lines (504) along the circumferential direction, and the outer wall of the sleeve (401) is provided with directional scale lines that cooperate with the scale lines (504).

6. The multi-branch convenient connection cable according to claim 1, characterized in that, The end cap (406) has a through groove at its axial center for the branch conductor (2) to pass through. The inner diameter of the through groove is equal to or slightly larger than the outer diameter of the branch conductor (2).

7. The multi-branch convenient connection cable according to claim 1, characterized in that, The annular sealing gasket (403) is an elastic rubber component. The inner wall of the sleeve (401) is provided with an abutting step. The annular sealing gasket (403) is located between the abutting step and the end cap (406). When the end cap (406) is tightened, the annular sealing gasket (403) is deformed under pressure and adheres tightly to the branch conductor (2).

8. A multi-branch convenient connection cable according to claim 1, characterized in that, The main conductor (1) is provided with a plurality of connecting tubes (6), and each connecting tube (6) is independently equipped with a detachable component (4), and adjacent detachable components (4) do not interfere with each other.

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